CN111115406B - Elevator with prevent swift current car function - Google Patents
Elevator with prevent swift current car function Download PDFInfo
- Publication number
- CN111115406B CN111115406B CN202010051969.7A CN202010051969A CN111115406B CN 111115406 B CN111115406 B CN 111115406B CN 202010051969 A CN202010051969 A CN 202010051969A CN 111115406 B CN111115406 B CN 111115406B
- Authority
- CN
- China
- Prior art keywords
- elevator
- speed limiter
- car
- dowel bar
- elevator car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to an elevator with a car sliding prevention function, which comprises a derrick, an elevator car and a car sliding prevention mechanism. The anti-slip mechanism comprises an elevator speed limiter, safety tongs, a driving rope and a dowel bar. Wherein the elevator speed limiter is mounted on the elevator car and can perform small-distance free displacement movement relative to the elevator car. The safety gear is also secured to the car. The driving rope is wound on a speed limiter rope wheel of the elevator speed limiter. The upper end of the dowel bar is connected and driven by the elevator speed limiter, and the lower end of the dowel bar acts on the safety tongs. Therefore, on one hand, the distance between the elevator speed limiter and the safety tongs is effectively ensured to be kept within a controllable range, and the sensitivity and the reliability of the actions of the safety tongs are ensured; on the other hand, the space design layout of the machine room is optimized to a certain extent, and further bedding is carried out for completely eliminating the design objective of the machine room. Furthermore, the installation efficiency of the elevator speed limiter is improved, and convenience is provided for subsequent maintenance and new operation.
Description
Technical Field
The invention relates to the technical field of elevator manufacturing, in particular to an elevator with a car sliding prevention function.
Background
The elevator mainly comprises a machine room, a traction system, a guide system, an elevator car, a weight balance system, an electric traction system, an electric control system and a safety protection system, wherein the safety protection system mainly comprises an elevator speed limiter and safety tongs. In the prior art, safety gear is fixed in the bottom of elevator car, and elevator guide rail wears to locate wherein. And the elevator governor is mounted in the machine room (as shown in fig. 1). The speed limiter monitors and controls the speed of the elevator car at any time, and when an overspeed condition occurs, namely 115% of the rated speed of the elevator, the speed limiter can timely send out signals, and then generates mechanical action to cut off a power supply circuit so as to brake a traction system. The safety gear action forces the car to stop if the elevator is still not braked. Thus, the following problems exist: 1) The existence of the machine room greatly increases the overall length dimension of the elevator and increases the investment of manufacturing cost; 2) If the elevator speed limiter is installed in the machine room, the design space layout of the machine room is not facilitated, and the design size of the machine room is increased; 3) When the elevator speed limiter is far away from the brake, the brake sensitivity of the elevator speed limiter can be influenced to a certain extent, so that potential safety hazards are caused; 4) When the elevator speed limiter fails, the operator cannot conveniently enter the machine room to carry out maintenance operation. Thus, a technician is required to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing the elevator with the anti-slip function, which has the advantages of simple structural design, lower manufacturing cost, convenience in installation and maintenance of an elevator speed limiter and capability of ensuring the brake sensitivity.
In order to solve the technical problems, the invention relates to an elevator with an anti-sliding function, which comprises a derrick, an elevator car, a guide rail, a motor driving part and an anti-sliding mechanism. The guide rail is fixed on the derrick. The elevator car moves up and down along the guide rail under the traction force of the motor driving part. The anti-slip mechanism comprises an elevator speed limiter, safety tongs, a driving rope and a dowel bar. Wherein the elevator speed limiter is connected to the elevator car and can perform small-distance free displacement movement relative to the elevator car. The elevator speed limiter is provided with a speed limiter rope wheel. The safety gear is also fixed to the car and it is opposite to the guide rail. The driving rope is wound on the speed limiter rope wheel, and the upper end and the lower end of the driving rope are respectively fixed at the upper end and the lower end of the derrick. The upper end of the dowel bar is connected and driven by the elevator speed limiter, and the lower end of the dowel bar acts on the safety tongs. When the elevator car runs at a speed exceeding the rated speed, the elevator speed limiter acts to enable the elevator speed limiter to upwards displace along the guide rail, meanwhile, the dowel bar is pulled to wholly upwards displace, and then the safety tongs are activated to act to clamp the guide rail.
As a further improvement of the technical scheme of the invention, the anti-slip mechanism further comprises a speed limiter bracket which is connected between the elevator car and the elevator speed limiter. The governor support is in critical contact with respect to the elevator car by the bolt assembly. And the elevator car and the speed limiter bracket are respectively provided with a connecting through hole matched with the bolt component. And the connecting through hole arranged on the speed limiter bracket is a long-strip waist-shaped hole extending along the up-down direction.
As a further improvement of the technical scheme of the invention, the anti-sliding mechanism further comprises a bending transition plate, a first propping nut and a second propping nut. The bending transition plate is fixedly connected to the speed limiter bracket for passing through the dowel bar. The first propping nut and the second propping nut are screwed on the dowel bar by virtue of a screw pair and symmetrically propped against the top surface and the bottom surface of the bending transition plate.
As a further improvement of the technical scheme of the invention, the elevator with the anti-slip function further comprises a protective cover which covers the periphery of the elevator speed limiter and is detachably fixed on the speed limiter bracket.
As a further improvement of the technical scheme of the invention, the protective housing comprises a sheet metal part body and a cover plate. The cover plate is detachably fixed on the sheet metal part body by means of screws.
As a further improvement of the technical scheme of the invention, the anti-slip mechanism further comprises a spiral tightener which is arranged and connected with the upper end head of the driving rope.
As a further improvement of the technical solution of the invention, the elevator speed limiter is mounted and fixed in the top position of the elevator car.
Compared with an elevator with a traditional design structure and an anti-slip function, in the technical scheme disclosed by the invention, the elevator speed limiter and the safety tongs are fixed with an elevator car and synchronously run along with the car, so that on one hand, the distance between the elevator speed limiter and the safety tongs is effectively ensured to be kept within a controllable range, and the sensitivity and the reliability of the actions of the safety tongs are ensured; on the other hand, the arrangement of the elevator speed limiter in the machine room is avoided, so that the space design layout of the machine room is optimized to a certain extent, and further bedding is made for the purpose of completely eliminating the design objective of the machine room. Furthermore, the installation efficiency of the elevator speed limiter is improved to a certain extent, and convenience is provided for subsequent maintenance and new operation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an elevator with a car sliding prevention function in the prior art.
Fig. 2 is a perspective view of an elevator with anti-slip function according to the present invention.
Fig. 3 is an enlarged view of part I of fig. 2.
Fig. 4 is an enlarged partial view of I I of fig. 2.
Fig. 5 is a perspective view of an elevator with anti-roll function according to another aspect of the present invention.
Fig. 6 is a partial enlarged view of ii of fig. 5.
Fig. 7 is a right side view of fig. 1.
Fig. 8 is an enlarged view of part IV of fig. 7.
1-An elevator car; 2-guiding tracks; 3-an anti-slip mechanism; 31-elevator speed limiter; 311-speed limiter rope pulleys; 32-safety tongs; 33-a drive rope; 34-dowel bars; 35-a speed limiter bracket; 351-elongated kidney-shaped apertures; 36-bolt assembly; 37-bending a transition plate; 38-a first abutment nut; 39-a second abutment nut; 310-screw tightener; 4-a protective housing; 41-sheet metal part body; 42-cover plate.
Detailed Description
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In order to facilitate a person skilled in the art to fully understand the technical solution disclosed in the present invention, the following describes the present invention in further detail with reference to specific embodiments, fig. 2 is a perspective view schematically illustrating an elevator with anti-rolling function according to the present invention, and it is known that the elevator mainly comprises a derrick (not shown in the drawings), an elevator car 1, a guide rail 2, a motor driving part (not shown in the drawings), an anti-rolling mechanism 3, and the like. Wherein the guide rail 2 is detachably fixed to the derrick by means of a press plate assembly. The elevator car 1 is vertically displaced along the guide rail 2 by the traction force of the motor drive unit. The anti-slip mechanism 3 includes an elevator governor 31, a safety gear 32, a drive rope 33, and a dowel 34. Wherein the elevator governor 31 is mounted fixed to the elevator car 1 and is free to move with respect to the elevator car 1 over a small distance. It should be noted that the specific dimension of the small distance is determined by the actual stroke L of the safety gear 32 (as shown in fig. 4), and is generally slightly larger than the value L by 3 to 5mm. The elevator governor 31 is provided with a governor sheave 311. The safety gear 32 is also fixed to the car 1 and it is opposite to the guide rail 2. The driving rope 33 is wound around the speed limiter rope sheave 311, and its upper and lower ends are fixed to the upper and lower ends of the derrick, respectively. The upper end of the dowel bar 34 is connected, driven by the elevator governor 31, and its lower end acts on the safety gear 32 (as shown in fig. 3,4, 5, 6). When the elevator car 1 runs beyond the rated speed, the elevator speed limiter 31 acts to displace itself upwards along the guide rail 2, and at the same time pulls the dowel 34 as a whole upwards for displacement movement, and then activates the safety gear 32 to act to clamp the guide rail 2. Thus, on one hand, the distance between the elevator speed limiter 31 and the safety gear 32 is effectively ensured to be kept within a controllable range, and the sensitivity and reliability of the action of the safety gear 32 are ensured; on the other hand, the arrangement of the elevator governor 31 in the machine room is avoided, whereby the spatial design layout of the machine room is optimized to a certain extent, and further bedding is made for the purpose of completely eliminating the design objective of the machine room. Furthermore, the installation efficiency of the elevator governor 31 is improved to some extent, and convenience is provided for subsequent maintenance and replacement operations thereof.
As a further refinement of the above-described elevator structure with the anti-slip function, a speed limiter bracket 35 is also provided in conjunction, which is connected between the elevator car 1 and the elevator speed limiter 31 (as shown in fig. 3). And the governor support 35 is in critical contact with respect to the elevator car 1 by the bolt assembly 36. The elevator car 1 and the governor bracket 35 are provided with coupling through holes adapted to the bolt assemblies 36. And wherein the coupling through-hole provided on the speed limiter bracket 35 is an elongated kidney-shaped hole 351 (as shown in fig. 5, 6) extending in the up-down direction. On the one hand, on the premise of ensuring that the elevator speed limiter 31 is fixed, reliable and stable relative to the elevator car 1, the self-position process of the elevator speed limiter is convenient to readjust in the debugging process; on the other hand, the maintenance and the replacement of the elevator governor 31 at a later stage are facilitated.
Moreover, in order to ensure the reliability of the force applied by the elevator speed limiter 31 to the dowel bar 34 and to facilitate the subsequent adjustment of the movement stroke of the dowel bar 34, it is recommended to adopt the following scheme to realize the connection and fixation of the dowel bar 34, which is specifically as follows: the anti-slip mechanism 3 further comprises a bending transition plate 37, a first abutting nut 38 and a second abutting nut 39. The bending transition plate 37 is fixedly connected to the speed limiter bracket 35 for passing through the dowel bar 34. The first and second abutment nuts 38, 39 are screwed to the dowel bar 34 by means of screw pairs and symmetrically abut against the top and bottom surfaces of the bent transition plate 37 (as shown in fig. 6, 7, 8). In the actual debugging process, when the overall stress and deformation state of the dowel bar 34 need to be adjusted, the first propping nut 38 and the second propping nut 39 only need to be respectively rotated along the up-down direction.
It is known that the tightness of the drive rope 33 itself has a critical influence on the performance of the elevator speed limiter 31, and in view of this, the above-mentioned anti-slip mechanism 3 is additionally provided with a screw tightener 310, which is arranged and connected to the upper end of the drive rope 33 (as shown in fig. 3). In this way, in the actual debugging process, the screw tightener 310 is conveniently and rapidly rotated according to the actual situation, so that the driving rope 33 is ensured to have proper tightness.
Furthermore, the elevator with the anti-slip function may be additionally provided with a protective cover 4 according to practical situations, wherein the protective cover covers the periphery of the elevator speed limiter 31 and is detachably fixed on the speed limiter bracket 35 (as shown in fig. 6), so that the elevator speed limiter 31 is effectively protected, and foreign matters or pollutants are prevented from entering the protective cover to influence the working performance of the elevator.
As a further optimization, the protective housing 4 described above is designed as a split structure, preferably comprising a sheet metal body 41 and a cover plate 42, in view of ensuring convenience in the subsequent maintenance of the elevator speed limiter 31. The cover plate 42 is detachably fixed to the sheet metal body 41 by means of screws (as shown in fig. 6). When the elevator speed limiter 31 fails and needs to be maintained, an operator only needs to remove the cover plate 42, so that a large enough maintenance operation space is formed.
Finally, the elevator governor 31 is preferably mounted, fixed in the top position of the elevator car 1 (as shown in fig. 2, 3). In this way, when the elevator speed limiter 31 fails, it is convenient for an operator to stand on top of the elevator car 1 to perform maintenance work.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An elevator with a car sliding prevention function is characterized by comprising a derrick, an elevator car, a guide rail, a motor driving part and a car sliding prevention mechanism; the guide rail is fixed on the derrick; the elevator car moves up and down along the guide rail under the action of the traction force of the motor driving part; the anti-slip mechanism comprises an elevator speed limiter, safety tongs, a driving rope and a dowel bar; the elevator speed limiter is connected to the elevator car and can perform small-distance free displacement movement relative to the elevator car, and the specific size of the small distance is determined by the actual stroke of the safety gear; a speed limiter rope pulley is arranged on the elevator speed limiter; the safety gear is also fixed on the car and is opposite to the guide rail; the driving rope is wound on the speed limiter rope wheel, and the upper end and the lower end of the driving rope are respectively fixed at the upper end and the lower end of the derrick; the upper end of the dowel bar is connected and driven by the elevator speed limiter, and the lower end of the dowel bar acts on the safety tongs; when the elevator car runs at a speed exceeding a rated speed, the elevator speed limiter acts to enable the elevator speed limiter to upwards displace along the guide rail, meanwhile, the dowel bar is pulled to wholly upwards displace, and then the safety tongs are activated to act to clamp the guide rail;
The anti-slip mechanism further comprises a speed limiter bracket which is connected between the elevator car and the elevator speed limiter; the speed limiter bracket is in critical contact state relative to the elevator car under the action of the bolt assembly; the elevator car and the speed limiter bracket are respectively provided with a connecting through hole matched with the bolt component; the connecting through hole arranged on the speed limiter bracket is a strip-shaped waist-shaped hole extending along the up-down direction;
The anti-sliding mechanism further comprises a bending transition plate, a first propping nut and a second propping nut; the bending transition plate is fixedly connected to the speed limiter bracket so as to enable the dowel bar to pass through; the first propping nut and the second propping nut are screwed on the dowel bar by means of a screw pair and symmetrically propped against the top surface and the bottom surface of the bending transition plate.
2. The elevator with anti-roll function of claim 1, further comprising a protective cover that covers the periphery of the elevator governor and is removably secured to the governor support.
3. The elevator with anti-roll function of claim 2, wherein the protective housing comprises a sheet metal body and a cover plate; the cover plate is detachably fixed on the sheet metal part body by means of screws.
4. The elevator with anti-roll function of claim 2, wherein the anti-roll mechanism further comprises a screw tightener disposed, connected to the upper end of the drive rope.
5. An elevator with anti-roll function according to claim 2, characterized in that the elevator speed limiter is mounted, fixed in the top position of the elevator car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051969.7A CN111115406B (en) | 2020-01-17 | 2020-01-17 | Elevator with prevent swift current car function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051969.7A CN111115406B (en) | 2020-01-17 | 2020-01-17 | Elevator with prevent swift current car function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111115406A CN111115406A (en) | 2020-05-08 |
| CN111115406B true CN111115406B (en) | 2024-09-17 |
Family
ID=70489639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010051969.7A Active CN111115406B (en) | 2020-01-17 | 2020-01-17 | Elevator with prevent swift current car function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111115406B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673155A (en) * | 2016-08-02 | 2018-02-09 | 奥的斯电梯公司 | Governor assemblies and elevator |
| CN212024465U (en) * | 2020-01-17 | 2020-11-27 | 宁波元吉智能科技有限公司苏州分公司 | Elevator with prevent swift current car function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100444976B1 (en) * | 2002-03-12 | 2004-08-21 | 주식회사 삼아전기 | Elevator apparatus |
| JP5069505B2 (en) * | 2007-06-27 | 2012-11-07 | 株式会社日立製作所 | How to unlock the elevator governor rope |
| JP2009263015A (en) * | 2008-04-22 | 2009-11-12 | Hitachi Ltd | Elevator device |
| RU2544904C2 (en) * | 2010-05-18 | 2015-03-20 | Отис Элевэйтор Компани | Built-in elevator safety system |
| CN103818798A (en) * | 2014-01-21 | 2014-05-28 | 宁波欧菱电梯配件有限公司 | Method and device for preventing car slipping of elevator |
| CN110395641B (en) * | 2018-04-25 | 2021-12-14 | 奥的斯电梯公司 | Speed limiter assembly and elevator system |
-
2020
- 2020-01-17 CN CN202010051969.7A patent/CN111115406B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673155A (en) * | 2016-08-02 | 2018-02-09 | 奥的斯电梯公司 | Governor assemblies and elevator |
| CN212024465U (en) * | 2020-01-17 | 2020-11-27 | 宁波元吉智能科技有限公司苏州分公司 | Elevator with prevent swift current car function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111115406A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11744359B2 (en) | Pneumatic lifting table frame and lifting table | |
| CN201056867Y (en) | Cantilever type mechanical parking equipment | |
| CN111115406B (en) | Elevator with prevent swift current car function | |
| CN212024465U (en) | Elevator with prevent swift current car function | |
| CN201647765U (en) | Emergency braking device used on traction sheave of traction machine | |
| CN113582099A (en) | Platform for installing existing house with additionally installed elevator | |
| CN2753700Y (en) | Steel rope overspeed protection safety device | |
| CN101830381A (en) | Emergency braking device acting on traction sheave of traction machine | |
| CN108821054B (en) | Car anti-falling device and car lifting system | |
| CN2771159Y (en) | Two-way speed limitelr for elevator | |
| CN1824599A (en) | A two-way overspeed protection device for elevators | |
| CN211687842U (en) | Braking device | |
| CN107082346B (en) | Traction machine protection casing | |
| JP4482196B2 (en) | Elevator hoisting machine | |
| CN221680467U (en) | Elevator and safety clamp with adjustable installation position | |
| CN216512250U (en) | Safety tongs lifting mechanism | |
| CN112489386A (en) | Large-scale machinery nearly electric construction early warning device | |
| CN211419212U (en) | Household elevator car roof stopping device | |
| CN111891887A (en) | An elevator drive system wound by steel belt | |
| CN111071894B (en) | Braking device | |
| CN217627262U (en) | Electric hoist gantry crane with anti-top-collision limiting structure | |
| US20130140259A1 (en) | Boom with two-block sensing system | |
| CN216763961U (en) | Overspeed governor action speed test fixture | |
| CN211034158U (en) | Bidirectional pull-cord switch | |
| CN216004836U (en) | Elevator overspeed governor drive mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240808 Address after: No. 33 Dongfu Road, Industrial Park, Suzhou City, Jiangsu Province, 215000 (this address is not allowed for retail) Applicant after: Suzhou puletai Automatic Control Technology Co.,Ltd. Country or region after: China Address before: No.33, Dongfu Road, Suzhou Industrial Park, Jiangsu Province, 215000 Applicant before: Ningbo Yuanji Intelligent Technology Co.,Ltd. Suzhou Branch Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |